Organic Chemistry I

Interactive tools.

Seven places to push electrons, turn a molecule over or make a prediction. Nothing graded, and every one tells you why. For the same chemistry with a right answer, see Practice.

Arrow PusherDraw a mechanism and watch what it makes.Push electrons on any molecule, or one you drew, and the structure changes to match.Curved arrows, formal charge, octetsOpen → Resonance ExplorerFind every valid resonance form, and rank them.Move a lone pair or a pi bond; the tool checks it and counts every valid form.Delocalization, contributor weightingOpen → 3D Molecule ViewerRotate it until the shape stops being abstract.Type a formula or draw a structure and see its real shape, angles measured.VSEPR, hybridization, stereochemistryOpen → Conformation LabTurn the bond. Watch the energy.Rotate a Newman projection against a live energy curve, or compare both cyclohexane chairs.Torsional strain, A-values, chair flipsOpen → Reaction PredictorSN1, SN2, E1 or E2 — and why, factor by factor.Substrate, reagent, solvent. Commit to a prediction, then see the four factors that decide it.Substitution vs. eliminationOpen → Acid/Base ComparatorTwo structures. Which proton comes off first?Compare acids, rank four at once, or find which proton comes off first, from measured pKa.pKa, conjugate base stabilityOpen → Spectroscopy LabRead the peaks, name the compound.An IR spectrum that explains its regions, a ¹H NMR predictor for any structure, and a puzzle mode.IR, ¹H NMR, degrees of unsaturationOpen →